package com.hl.card.common.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Date;
import java.util.Random;

import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PutObjectResult;
public class FileUploadUtil{
		// endpoint以杭州为例，其它region请按实际情况填写
	    protected static String endpoint = "http://oss-cn-shenzhen.aliyuncs.com";
	    protected static String accessKeyId  = "LTAICJo7h1mwb8eE";
	    protected static String accessKeySecret  = "wiDePKZR2N3VXYd1wsMuGsqGphVmCn";
	    protected static String bucketName  = "hlbibi";
	    //文件存储目录
	    private String filedir = "resources/images/dismember_apply";

	    private OSSClient ossClient;
	    public FileUploadUtil() {
	        ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
	    }

	    /**
	     * 初始化
	     */
	    public void init() {
	        ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
	    }

	    /**
	     * 销毁
	     */
	    public void destory() {
	        ossClient.shutdown();
	    }

	    /**
	     * 上传图片
	     *
	     * @param url
	     */
	    public void uploadImg2Oss(String url) throws Exception {
	        File fileOnServer = new File(url);
	        FileInputStream fin;
	        try {
	            fin = new FileInputStream(fileOnServer);
	            String[] split = url.split("/");
	            this.uploadFile2OSS(fin, split[split.length - 1]);
	        } catch (FileNotFoundException e) {
	            throw new Exception("图片上传失败01");
	        }
	    }


	    public String uploadImg2Oss(MultipartFile file,String path) {
	        String originalFilename = file.getOriginalFilename();
	        String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
	        Random random = new Random();
	        String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
	        try {
	            InputStream inputStream = file.getInputStream();
	            //this.uploadFile2OSS(inputStream, name);
	            return this.uploadFile2OSS(inputStream, path+name);
	        } catch (Exception e) {
	        	e.printStackTrace();
	        }
	        return "";
	    }
	    /**
	     * 获得图片路径
	     *
	     * @param fileUrl
	     * @return
	     */
	    public String getImgUrl(String fileUrl) {
	        if (!StringUtils.isEmpty(fileUrl)) {
	            String[] split = fileUrl.split("/");
	            return this.getUrl(this.filedir + split[split.length - 1]);
	        }
	        return null;
	    }

	    /**
	     * 上传到OSS服务器  如果同名文件会覆盖服务器上的
	     *
	     * @param instream 文件流
	     * @param fileName 文件名称 包括后缀名
	     * @return 出错返回"" ,唯一MD5数字签名
	     */
	    public String uploadFile2OSS(InputStream instream, String fileName) {
	        String ret = "";
	        try {
	            //创建上传Object的Metadata
	            ObjectMetadata objectMetadata = new ObjectMetadata();
	            objectMetadata.setContentLength(instream.available());
	            objectMetadata.setCacheControl("no-cache");
	            objectMetadata.setHeader("Pragma", "no-cache");
	            objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
	            objectMetadata.setContentDisposition("inline;filename=" + fileName);
	            //上传文件
	            PutObjectResult putResult = ossClient.putObject(bucketName, filedir + fileName, instream, objectMetadata);
	            //ret = putResult.getETag();
	            ret = filedir + fileName;
	        } catch (IOException e) {
	        	e.printStackTrace();
	        } finally {
	            try {
	                if (instream != null) {
	                    instream.close();
	                }
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	        }
	        return ret;
	    }

	    /**
	     * Description: 判断OSS服务文件上传时文件的contentType
	     *
	     * @param FilenameExtension 文件后缀
	     * @return String
	     */
	    public static String getcontentType(String FilenameExtension) {
	        if (FilenameExtension.equalsIgnoreCase(".bmp")) {
	            return "image/bmp";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".gif")) {
	            return "image/gif";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".jpeg") ||
	                FilenameExtension.equalsIgnoreCase(".jpg") ||
	                FilenameExtension.equalsIgnoreCase(".png")) {
	            return "image/jpeg";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".html")) {
	            return "text/html";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".txt")) {
	            return "text/plain";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".vsd")) {
	            return "application/vnd.visio";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".pptx") ||
	                FilenameExtension.equalsIgnoreCase(".ppt")) {
	            return "application/vnd.ms-powerpoint";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".docx") ||
	                FilenameExtension.equalsIgnoreCase(".doc")) {
	            return "application/msword";
	        }
	        if (FilenameExtension.equalsIgnoreCase(".xml")) {
	            return "text/xml";
	        }
	        return "image/jpeg";
	    }
	    
	    /**
	     * 获得url链接
	     *
	     * @param key
	     * @return
	     */
	    public String getUrl(String key) {
	        // 设置URL过期时间为10年  3600l* 1000*24*365*10
	        Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 100);
	        // 生成URL
	        URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
	        if (url != null) {
	            return url.toString();
	        }
	        return null;
	    }


}
